Summary of Total Assets by Segment (Detail) (USD $) In Millions	Jul. 02, 2011	Jan. 01, 2011
Segment Reporting Information [Line Items]
Assets	$ 16,033.5	$ 15,139.4
Construction and Do It Yourself | Segment, Continuing Operations
Segment Reporting Information [Line Items]
Assets	7,912.2	7,417.6
Industrial Segment | Segment, Continuing Operations
Segment Reporting Information [Line Items]
Assets	3,484.7	3,209.3
Securities Industry | Segment, Continuing Operations
Segment Reporting Information [Line Items]
Assets	3,710.0	3,496.3
Segment, Continuing Operations
Segment Reporting Information [Line Items]
Assets	15,106.9	14,123.2
Corporate
Segment Reporting Information [Line Items]
Assets	$ 926.6	$ 1,016.2